Improvement in winepresses



c. F. HARTMANN.

Improvement in Wine-Presses.

Patented )une yfi, 1871.

U/bz-esses MJ 4UNrrEn STAT-Eis EEICE.

ATENE IMPROVEMENT IN WINEPRESSES.

Specification forming part of Letters Patent No. 115,731, dated June 6,1871.

the art to make and use the same, reference being had to theaccompanying drawing forming part of this specification, in which draw-Ing- Figure 1 represents a longitudinal vertical section of thisinvention. Fig. 2 is a plan of the press-bottom detached. Fig. 3 is ahori v zontal section of the press-box, the line a' w,

Fig. 1, indicating the plane. of section.

Similar letters indicate correspondingparts. This invention relates tocertain improvements on a wine-press described in Letters Patent grantedto me February 22, 1870, and

numbered 100,142. These improvements consist in the arrangement of ametal casing embracing the press-bottom and forming a iiange projectingover the top edge of said bottom, so as to confine the press-box in theproper position toward the bottom while the operation of pressingprogresses, and alsoto impart to the bottom the requisite strength anddurability.

The press-box is strengthened by a casing embracing its bottom end, and,if desired, it may be further strengthened by one or more hoops; Thegrates in the interior of the pressbox are formed each of a series oftrapezoidal strips'of woodplaced with their narrow edges outward, andprotected by wire-nettin g secured to their outersurfaces in such amanner that the interspaces between the adjoining strips are narroweston their inner or receiving ends and widest at their outer ordischarging ends, and by these means the choking up of the gratos iseectually prevented, while all solid parts mixed with the juice areretained either by the grates or wire-netting protecting the backs ofsaid grates.

In the drawing, the letter A designates the crushing apparatus, whichconsists of two rollers which are geared together so as to revolve inopposite directions, and which are situated beneath a hopper, B, andinclosed in a case provided with a spout, C, through which the crushedfruit or pulp is carried to the pressbox-D. This press-boris constructedof strong boards or planks, and it is strengthened by a casing, E, ofcast-iron or any other suitable material, which embraces its bottomedge, and, it desired, one or more hoops, F, may be appliedY to the bodyof the box at suitable distances apart. The casing E of the press-box ismade to fit nicely into a casing, G, which embraces the press-bottom H,and which is provided with a ange, c, projecting over the edge of saidbottom, so that the boX,wl1cn placed down on the bottom H, is retainedin the proper relation toward the bottom. The casing G is also made ofcast-iron like the casing E, so that the latter will always fit in theformer. lf the bottom edge of the press-box should be left unprotectedthe wood would be liable to swell bythe moisture, and the box could notbe inserted in casing G; or it would be liable to swell during theoperation of )ressing, and in that case it would bind in the casing Gr.By the casing G the press-bottom is strengthened and prevented fromswelling or from splitting, and at the same time the `juice is notallowed to come in contact with the metal. In said bottom is made achannel or gutter, b, which extends all round and inclines down towardthe discharge-spout c. The interior of the press-box D is lined withgrates I, which are composed of trapezoidal strips d, the broad edges ofwhich face inward, and which are united by dowe-ls e passingtransversely through them. The rear or outer surfaces of theseV gratesare covered with wire-gauze f, heldin position by upright stripsg. (SeeFig. 3.) By the dowel connection the grates are rendered elastic, theyare prevented from swelling, and they can be easily cleaned. By usingtrapezoidal strips d in the construction of the grates I the interspacesbetween said strips are rendered conical, beingsmallest on their inneror receiving ends and largest on their outer or discharging ends, and bythese means the grates are ei'ectually prevented from choking, while thereceiving ends of the interspaces can be made as narrow as may bedesirable. By combiningwith the trapezoidal strips or grate bars thewire-netting fthe egress of all solid matter from the press-box iseffectually prevented, and nothing but clear juice is permitted to passthrough the grates. Said grates are placed loosely in the press-box, sothat they can be vreversed at pleasure, and when in position they areconlined between the corner blocks h. (See Fig. 3.)

In using the press for making wine from,

grapes, where it is desirable to exclude all contact with metal, thewire-gauze sides of the bottom H the bottom edges of the grates bearupon the inner edge ofthe gutter b, while the bottom edge of thepress-box rests upon the outer edge of said gutter. The juice passingthrough the grates is thus conducted down in to thel gutter withoutcoming in contact with any of the metal parts ofthe press box 0r bottom.The follower' J is operated by a screw, K. By this arrangement awine-press is obtained which is durable in its construction andconvenient in its operation.

The grates can' easilybe taken out and cleaned, and they are firm,durable, and easily constructed. v

. What I claim as new, and desire to secure by Letters Patent, is- 1.The combination of the metallic casings E G, press-bottom H, grates I,and the wirenetting f, as herein shown and described, for the purposesspecified.

2. The arrangement in the wine-press, substantially as herein shown, ofthe grates I, constructed of trapezoidal strips d united by dowels e,substantially as described.

3. In the wine-press herein shown, the combination of the wire-'nettingfwith the trapezoidal strips d, forming the grates I, substantially asset forth.

CHRISTIAN FREDERICK HARTMANN.

Witnesses:

J A0013 H. BECK, MARY E. BECK.

